Controller fault replacement system and method
A controller and main controller technology, applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as user losses and components that cannot operate normally, to improve the replacement speed, avoid abnormal vehicle functions, and quickly replace Effect
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Embodiment 1
[0026] figure 1 It is a schematic structural diagram of a controller fault takeover system provided by Embodiment 1 of the present invention. Such as figure 1 As shown, the controller failover system provided by this embodiment includes a first communication bus 11, a second communication bus 12, a vehicle communication network 13, a main controller 14 and at least one secondary controller 15; wherein, the main controller 14, Communicatively connected with the secondary controller 15 through the first communication bus 11, and communicated with the vehicle communication network 13 through the second communication bus 12, for sending controller operation data to the vehicle communication network 13, and for detecting the main controller 14 When a fault occurs and the fault is a preset switching fault, a switching trigger signal is sent to the secondary controller 15 based on the first communication bus 11; the secondary controller 15 is communicatively connected to the vehicle...
Embodiment 2
[0049] In this embodiment, on the basis of the foregoing embodiments, optionally, the secondary controller is further configured to send controller operation data to the main controller through the first communication bus after receiving the fault trigger signal.
[0050] In this embodiment, after the sub-controller works instead of the main controller, the sub-controller can not only send the controller operation data to the vehicle communication network, but also send the controller operation data to the main controller.
[0051] The advantage of sending the controller’s operating data to the main controller is that it can realize the backup of the operating data of the secondary controller, and then when the secondary controller has a major failure, the secondary controller can be diagnosed based on the data backed up in the primary controller analysis; or, data synchronization between the main controller and the sub-controller can be realized. After the main controller has ...
Embodiment 3
[0057] figure 2 It is a schematic flow chart of a controller fault replacement method provided by Embodiment 3 of the present invention. This embodiment is applicable to the case where the primary controller is replaced by a secondary controller when the primary controller fails. This method can be replaced by a faulty controller System execution, the system can be implemented by hardware and / or software, the method specifically includes the following steps:
[0058] S210. The main controller sends controller operating data to the vehicle communication network based on the second communication bus. If it is detected that the main controller fails and the failure is a preset switching failure, send Send toggle trigger signal.
[0059] S220. When the secondary controller receives the switching trigger signal, based on the received controller operation data sent by the main controller through the first communication bus, and the vehicle communication network through the first c...
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